L3n4rd,
Actually, it was to confirm both.If the bullet wouldn't fit into the case, then you would have to investigate the cause.If the case was too long,and jammed into the lede/rifling,it would have a similar effect as if the bullet were too large.BTW, I don't think the numbers at the top left of the drawings are the weights, note the longest bullets have the smallest numbers.Note the numbers at the base of the cartridges.The 474 and 474A are, I believe,DWM case/cartridge numbers.Note also the drawings are of cartridges, the chambercast dimensions will have to be different,otherwise the cartridges wouldn't chamber.In the old days, the difference in some dimensions would be more significant than they are now.
Mike

Last edited by Der Ami; 08/13/15 12:12 PM.